Update vars.sh

[superhanliu2]

correct CCTZ_DOWNLOAD value for old value was wrong,can not download

Proposed changes

Issue Number: close #xxx

Problem summary

Describe your changes.

Checklist(Required)

1. Does it affect the original behavior:
   • [x] Yes
   • [ ] No
   • [ ] I don't know
2. Has unit tests been added:
   • [ ] Yes
   • [x] No
   • [ ] No Need
3. Has document been added or modified:
   • [ ] Yes
   • [x] No
   • [ ] No Need
4. Does it need to update dependencies:
   • [ ] Yes
   • [x] No
5. Are there any changes that cannot be rolled back:
   • [ ] Yes (If Yes, please explain WHY)
   • [x] No

Further comments

If this is a relatively large or complex change, kick off the discussion at [email protected] by explaining why you chose the solution you did and what alternatives you considered, etc...

[adonis0147]

Hi @superhanliu2 , the link works fine. Maybe you can check the content in official release page.

[superhanliu2]

old value is invalid

[superhanliu2]

@adonis0147 but old value is not valid. your link is right ,so am i ,but not old link.

[jackwener]

I have try it, old value is valid. But use above link may be better.

[adonis0147]

I inspected the network traffic, the request was redirected to codeload.github.com. Could you give the steps to show the errors you mentioned?

I tested the following commands and they all work fine.

wget https://github.com/google/cctz/archive/refs/tags/v2.3.tar.gz -O cctz.tar.gz
curl -L https://github.com/google/cctz/archive/refs/tags/v2.3.tar.gz -o cctz.tar.gz